Nickel(II) carbonate

Nickel(II) carbonate
Names
	IUPAC name Nickel(II) carbonate
	Other names Nickelous carbonate
Identifiers
CAS Number	3333-67-3 ; 29863-10-3 (Ni4CO3(OH)6(H2O)4) ;
3D model (JSmol)	Interactive image;
ChemSpider	17701 ;
ECHA InfoCard	100.020.063
EC Number	222-068-2;
PubChem CID	18746;
RTECS number	QR6200000;
UN number	3288
CompTox Dashboard (EPA)	DTXSID201333983 DTXSID3025708, DTXSID201333983 ;
	InChI InChI=1S/CH2O3.Ni/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Key: ZULUUIKRFGGGTL-UHFFFAOYSA-L ; InChI=1/CH2O3.Ni/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Key: ZULUUIKRFGGGTL-NUQVWONBAN;
	SMILES [Ni+2].[O-]C([O-])=O;
Properties
Chemical formula	NiCO3
Molar mass	118.7
Appearance	light green powder
Density	4.39 g/cm3
Melting point	205 °C (401 °F; 478 K) ; decomposes
Solubility in water	0.0093 g/100ml
Solubility product (Ksp)	6.6·10−9
Structure
Crystal structure	rhombohedral
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H315, H317, H319, H332, H334, H335, H350
Precautionary statements	P201, P261, P280, P305+P351+P338, P308+P313
NFPA 704 (fire diamond)	2 0 0
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	840 mg/kg
Safety data sheet (SDS)	ICSC 0927
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Nickel(II) carbonate describes one or a mixture of inorganic compounds containing nickel and carbonate. From the industrial perspective, an important nickel carbonate is basic nickel carbonate with the formula Ni₄CO₃(OH)₆(H₂O)₄. Simpler carbonates, ones more likely encountered in the laboratory, are NiCO₃ and its hexahydrate. All are paramagnetic green solids containing Ni²⁺ cations. The basic carbonate is an intermediate in the hydrometallurgical purification of nickel from its ores and is used in electroplating of nickel.